trekking in Altai Mountains in June (Siberia)

I live in Moscow and in June I would like to travel to Siberia.I have a plan to get to Abakan and from there get to smaller villages and to do thr trekking in the mountains.The idea is to sleep in tents in the mountais to enjoy the beauty of the wilderness of this region.I know that there are people who organise this kind of tours but they are quite expensive-that's why I am looking for people who have experience in trekkking, sleeping in tents to join me.I'm waiting for your ideas!!!!